1. What does the x axis represent in this situation?

The x axis the amount of time from arriving at the park to arriving back home.

The line labeled 1 is the time he sat at the park. Line 2 is when he walked to get a bagel. Line 3 is when he got the bagel, line 4 is walking home and line 5 was when he got home.

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl